Description

Shadows over Innistrad is a Magic: The Gathering expansion block consisting of the sets Shadows over Innistrad and Eldritch Moon.

Shadows over Innistrad has five main mechanics:

• Madness: a returning mechanic from Time Spiral that allows a player to cast a card for its madness cost instead of being discarded. This is shown on the card Fiery Temper.
• Delirium: counts the number of different card types in a player's graveyard. If that player has four or more card types among cards in their graveyard (e.g. creature, instant, sorcery, land), delirium will grant specific effects or bonuses, like the card Soul Swallower.
• Investigate: a keyword that creates a Clue artifact token that you may pay 2 generic mana and sacrifice to draw a card, as seen on cards like Tireless Tracker.
• Transform: a returning mechanic from original Innistrad, allowing the card to "transform" to its back side if certain conditions are met, such as the card Westvale Abbey.
• Skulk: an evasion ability that appears on creature cards meaning that they can't be blocked by creatures with greater power, such as Rancid Rats.